Home / 2,878.56-4,318.92-1,725.12

Finding the Fourth Proportional to 2,878.56, 4,318.92 and 1,725.12

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Solution

The fourth proportional to 2,878.56, 4,318.92 and 1,725.12 is: 2,588.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,878.56 : 4,318.92 = 1,725.12 : x
  2. Step 2: Convert to fraction form
    2,878.56/4,318.92 = 1,725.12/x
  3. Step 3: Cross multiply
    2,878.56x = 4,318.92 × 1,725.12
  4. Step 4: Simplify right side
    2,878.56x = 7,450,655.27
  5. Step 5: Solve for x
    x = 7,450,655.27/2,878.56
  6. Step 6: Final answer
    x = 2,588.33

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.